"The Metrohm model 905 titrator gives accurate and reproducible results day in and day out. It does have several weaknesses though. The Touch Control unit has been plagued with all sorts of problems. The instrument routinely locks up and must be unplugged to recover from the error. Multiple firmware updates and parts swapping has not resolved the issue. Service support is weak unless under warranty. Data chips used in the dosing units fail periodically causing the titrant to not be recognized. All of these errors are also present on my Metrohm 907 model, also equipped with Touch Control."

"This has excellent software. It is extremely robust, consistent and reliable. It is easily upgradable too. We purchased the Karl Fisher version as well, and two units work seamlessly on same software from the same computer. "